NASDAQ:RBBN | Historical Stock Price | Ribbon Communications Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2000-05-25 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.09$3.47$11.03$35.04$111.33$353.722000-05-252026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$18.60$18.60788,200
2005-12-29$19.05$19.05825,380
2005-12-28$19.05$19.051,003,540
2005-12-27$18.30$18.30842,400
2005-12-23$18.50$18.50648,960
2005-12-22$18.15$18.15578,480
2005-12-21$18.25$18.251,138,640
2005-12-20$17.75$17.75578,960
2005-12-19$17.95$17.95866,980
2005-12-16$18.50$18.50889,740
2005-12-15$18.40$18.40931,700
2005-12-14$18.70$18.701,241,080
2005-12-13$18.25$18.251,386,140
2005-12-12$18.70$18.70736,000
2005-12-09$18.85$18.85934,780
2005-12-08$18.50$18.501,841,960
2005-12-07$19.05$19.051,449,380
2005-12-06$20.10$20.101,084,880
2005-12-05$20.20$20.202,295,520
2005-12-02$19.85$19.851,521,820
2005-12-01$20.65$20.651,556,820
2005-11-30$20.60$20.601,789,360
2005-11-29$21.40$21.40533,440
2005-11-28$21.90$21.90711,580
2005-11-25$21.65$21.65117,640
2005-11-23$22.00$22.00781,820
2005-11-22$21.25$21.25749,460
2005-11-21$21.10$21.10546,480
2005-11-18$21.45$21.451,709,240
2005-11-17$20.60$20.60634,460
2005-11-16$20.80$20.80487,100
2005-11-15$20.70$20.70445,180
2005-11-14$21.20$21.20618,720
2005-11-11$21.70$21.70698,020
2005-11-10$21.10$21.101,144,780
2005-11-09$20.85$20.853,332,260
2005-11-08$25.30$25.30946,460
2005-11-07$24.60$24.601,008,480
2005-11-04$24.10$24.10511,240
2005-11-03$24.25$24.25817,640
2005-11-02$23.15$23.151,058,460
2005-11-01$21.80$21.80517,280
2005-10-31$21.80$21.801,359,600
2005-10-28$22.15$22.15504,580
2005-10-27$21.95$21.95989,540
2005-10-26$23.35$23.35537,120
2005-10-25$23.20$23.20552,340
2005-10-24$23.95$23.95599,720
2005-10-21$23.30$23.30736,960
2005-10-20$23.80$23.80492,380
2005-10-19$24.20$24.20689,220
2005-10-18$23.85$23.85578,300
2005-10-17$24.40$24.40632,900
2005-10-14$24.85$24.85736,840
2005-10-13$24.95$24.95683,300
2005-10-12$24.75$24.751,656,400
2005-10-11$26.90$26.901,123,920
2005-10-10$27.05$27.05651,060
2005-10-07$26.55$26.551,077,120
2005-10-06$26.85$26.851,086,800
2005-10-05$27.35$27.35976,840
2005-10-04$28.20$28.201,101,660
2005-10-03$28.60$28.601,237,900
2005-09-30$28.95$28.951,170,680
2005-09-29$28.25$28.251,248,220
2005-09-28$27.65$27.651,579,240
2005-09-27$25.95$25.95472,860
2005-09-26$25.80$25.80895,460
2005-09-23$24.75$24.751,197,240
2005-09-22$25.40$25.402,116,020
2005-09-21$26.15$26.152,408,160
2005-09-20$24.50$24.501,355,740
2005-09-19$23.35$23.35486,800
2005-09-16$23.85$23.85575,780
2005-09-15$23.70$23.70371,220
2005-09-14$24.40$24.40506,300
2005-09-13$24.85$24.85594,660
2005-09-12$24.40$24.40389,820
2005-09-09$24.55$24.55684,260
2005-09-08$24.25$24.25829,520
2005-09-07$23.65$23.65559,820
2005-09-06$23.25$23.25341,500
2005-09-02$23.00$23.00357,960
2005-09-01$23.45$23.45327,780
2005-08-31$23.55$23.55470,940
2005-08-30$22.95$22.95454,600
2005-08-29$23.45$23.45453,480
2005-08-26$23.35$23.35652,940
2005-08-25$24.10$24.10380,380
2005-08-24$23.80$23.80599,240
2005-08-23$24.45$24.45517,640
2005-08-22$24.65$24.65412,320
2005-08-19$24.75$24.75764,260
2005-08-18$24.85$24.85859,440
2005-08-17$25.15$25.15747,040
2005-08-16$25.50$25.501,184,520
2005-08-15$26.40$26.40984,800
2005-08-12$26.15$26.151,095,380
2005-08-11$25.70$25.70871,020
2005-08-10$26.00$26.001,062,040
2005-08-09$25.65$25.654,173,040
2005-08-08$23.45$23.451,351,440
2005-08-05$23.70$23.70646,560
2005-08-04$23.35$23.35342,200
2005-08-03$23.90$23.90322,580
2005-08-02$24.00$24.00393,400
2005-08-01$24.30$24.30238,140
2005-07-29$24.20$24.20372,080
2005-07-28$24.20$24.20352,480
2005-07-27$24.00$24.00382,660
2005-07-26$24.35$24.35402,800
2005-07-25$24.20$24.20545,980
2005-07-22$24.10$24.10482,040
2005-07-21$24.15$24.15643,380
2005-07-20$23.55$23.55323,680
2005-07-19$23.25$23.25228,860
2005-07-18$23.05$23.05364,180
2005-07-15$22.95$22.951,075,000
2005-07-14$23.90$23.90446,800
2005-07-13$24.25$24.25274,380
2005-07-12$24.15$24.15479,480
2005-07-11$24.10$24.10568,560
2005-07-08$23.55$23.55357,960
2005-07-07$23.35$23.35366,500
2005-07-06$23.50$23.50322,720
2005-07-05$23.55$23.55629,660
2005-07-01$23.65$23.65359,180
2005-06-30$23.85$23.85784,120
2005-06-29$24.85$24.85365,560
2005-06-28$24.80$24.80439,160
2005-06-27$24.05$24.05481,880
2005-06-24$24.55$24.553,652,900
2005-06-23$23.55$23.55666,300
2005-06-22$24.60$24.60556,060
2005-06-21$24.90$24.901,234,960
2005-06-20$24.90$24.90934,040
2005-06-17$24.35$24.35765,460
2005-06-16$23.90$23.90360,660
2005-06-15$23.80$23.801,244,080
2005-06-14$22.45$22.451,561,480
2005-06-13$24.45$24.45946,240
2005-06-10$24.55$24.55925,000
2005-06-09$23.95$23.951,222,460
2005-06-08$23.20$23.201,165,460
2005-06-07$21.95$21.95586,400
2005-06-06$22.05$22.05506,620
2005-06-03$22.10$22.10485,280
2005-06-02$21.90$21.90364,400
2005-06-01$21.95$21.95486,680
2005-05-31$22.25$22.25787,040
2005-05-27$21.70$21.70585,740
2005-05-26$21.35$21.35477,620
2005-05-25$21.30$21.30936,960
2005-05-24$20.35$20.35488,180
2005-05-23$20.65$20.651,319,560
2005-05-20$18.60$18.60603,500
2005-05-19$18.15$18.15342,140
2005-05-18$18.25$18.25415,580
2005-05-17$18.30$18.30422,860
2005-05-16$18.25$18.25287,100
2005-05-13$18.20$18.20229,980
2005-05-12$18.05$18.05372,460
2005-05-11$17.70$17.70520,460
2005-05-10$17.45$17.451,058,860
2005-05-09$19.20$19.20600,660
2005-05-06$19.10$19.10491,280
2005-05-05$18.05$18.05646,140
2005-05-04$17.50$17.50662,060
2005-05-03$17.50$17.50421,700
2005-05-02$17.55$17.55479,860
2005-04-29$17.20$17.201,200,080
2005-04-28$16.85$16.852,130,480
2005-04-27$19.20$19.20448,960
2005-04-26$19.25$19.25313,640
2005-04-25$19.50$19.50349,080
2005-04-22$19.30$19.30786,360
2005-04-21$19.75$19.75769,160
2005-04-20$20.10$20.101,722,480
2005-04-19$20.25$20.253,527,020
2005-04-18$18.30$18.301,490,840
2005-04-15$18.65$18.65907,220
2005-04-14$19.50$19.50763,660
2005-04-13$19.70$19.70884,780
2005-04-12$19.65$19.65425,680
2005-04-11$19.75$19.75722,520
2005-04-08$19.50$19.50954,740
2005-04-07$18.85$18.851,003,400
2005-04-06$17.95$17.951,025,980
2005-04-05$17.95$17.952,596,840
2005-04-04$20.20$20.20896,320
2005-04-01$20.95$20.95649,140
2005-03-31$21.20$21.20623,360
2005-03-30$21.60$21.60601,300
2005-03-29$21.20$21.201,105,720
2005-03-28$22.00$22.00505,520
2005-03-24$22.05$22.05504,160
2005-03-23$21.75$21.75663,660
2005-03-22$21.05$21.05708,640
2005-03-21$21.45$21.45841,140
2005-03-18$20.95$20.95959,460
2005-03-17$21.75$21.75632,460
2005-03-16$22.00$22.001,147,280
2005-03-15$21.80$21.801,983,740
2005-03-14$21.80$21.80807,640
2005-03-11$21.50$21.50947,180
2005-03-10$21.05$21.051,587,260
2005-03-09$21.90$21.901,256,780
2005-03-08$21.35$21.352,301,680
2005-03-07$22.35$22.351,627,960
2005-03-04$22.50$22.507,375,900
2005-03-03$27.55$27.552,333,500
2005-03-02$28.55$28.551,345,060
2005-03-01$28.00$28.001,519,740
2005-02-28$26.35$26.351,427,360
2005-02-25$25.50$25.501,176,060
2005-02-24$26.25$26.251,039,920
2005-02-23$26.05$26.051,397,300
2005-02-22$27.05$27.051,014,060
2005-02-18$26.55$26.551,064,940
2005-02-17$26.60$26.601,392,580
2005-02-16$27.35$27.351,261,100
2005-02-15$28.20$28.201,362,000
2005-02-14$29.25$29.25910,840
2005-02-11$27.95$27.951,028,700
2005-02-10$27.80$27.802,135,040
2005-02-09$26.75$26.751,701,420
2005-02-08$27.80$27.801,807,360
2005-02-07$28.35$28.351,272,160
2005-02-04$29.40$29.401,051,120
2005-02-03$29.20$29.201,086,500
2005-02-02$30.35$30.35476,160
2005-02-01$30.65$30.65682,860
2005-01-31$30.65$30.651,288,720
2005-01-28$31.10$31.101,126,140
2005-01-27$30.95$30.951,371,880
2005-01-26$29.10$29.10547,920
2005-01-25$29.10$29.10692,700
2005-01-24$28.10$28.101,150,020
2005-01-21$28.35$28.351,055,380
2005-01-20$28.95$28.95696,260
2005-01-19$29.85$29.851,114,160
2005-01-18$31.00$31.001,051,140
2005-01-14$30.85$30.851,279,760
2005-01-13$30.95$30.952,272,980
2005-01-12$29.85$29.853,921,120
2005-01-11$27.65$27.651,139,460
2005-01-10$27.45$27.451,657,620
2005-01-07$29.00$29.001,567,320
2005-01-06$26.75$26.751,078,260
2005-01-05$28.05$28.05707,840
2005-01-04$28.60$28.601,007,940
2005-01-03$28.00$28.001,534,620